Sanding apparatus for vehicles



Oct. 2 1923.

L. J. DUFFNER SANDING APPARATUS FOR VEHICLES Filed Jan. 22 2 Sheets-Sheet l [AW M707? L w 17 ('lbkozmq:

Oct. 2 1923. 1,469,627

L. J. DUFFNER SANDING-APPARATUS FOR VEHICLES Filed Jan. 22 1925 2 Sheets-Sheet 2 Lynchbur 1' LEONA a. increase, on nrncnnuae, yrmm.

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App Hoatiou nled January 2a, 1923. Serial no. crease.

To all whom it may coacem:

it hown'that I, Laozvann in the county of State of 1r 'nia, have invented certain new and useful mprovements in Sanding Aparatus for Vehicles, of which the following s a specification. J

The present invention relates to a device for sanding the ground in front of the driving wheels of vehicles such as automobiles of both light and heavy construction.

In existmg devices of this class, it often happens that the channels, leadin the sand from the receptacle to the groun 010 and that no sand will pass out when neede the common cause being that the valves are so located in the channels, that they easily become stuck therein by sand collecting on the sides of the valves and in this manner prevent the movement of the valves to open the passa s. When these valves are s1tuated within the tubes it also often happens that mud splashing up from the road collects at the lower ends of the tubes and dries up therein to prevent the falling out of the sand from the tubes' One object of the present invention is now to construct the passages and the valves in such a manner, that no sticking can occur and that accordin lythe sand is always available for sprin ing in front of theldriving wheels. I

Another object of the invention. is to provide the sand receptacle with agitators in order to make sure that the sand enters the passages from the receptacle.

For light weight vehicles such as passenger automobiles, it is generally sufiicient to provide one rece tacle for both of the driving wheels, whi e for heavier vehicles such as motor trucks, I preferably provide twin receptacles for the sand with individual tubular passages' leading therefrom to each (lrivin 'wheel.

In t e accompanying drawings one embogiment of the invention is illustrated, an

Figure 1 represents a side elevation and partial section of a light automobile having the device installed;

J. DurrNan, a citizen of the United States residing at dampbell and.

"Figure 2 is a section along line 2-.-2 of Figure 1;

Figure 3 is a section along line 3-3 of Fi re 2;

igure 4 is a horizontal section along line 4-4 of Figure3; and

Figure 5 is front elevation of twin sand receptacles intended for heavy trucks.

In the drawings reference numeral 10 represents a passenger automobile in which a sand receptacle 11 is installed at the rear end, preferably under the seat thereof. The receptacle 11, consists of a casing, preferably of square cross section as seen in Figure 4, installed in. upright position in the vehicle and provided with a cover 12 for the opening at the top of the receptacle. It is evident that a cylindrical casing may at times be preferable to the uare sectional one shown. The bottom 13 o the receptacle is in the shape of an'inverted pyramidic frustum provided with a central openingcas at 14, as best seen in Figures 2 and 3. To this bottom is secured, as by rivets or the like, the funnel-shaped upper end 15 of the twin guide tubes 16, which branch outwardly and forwardly, so that the mouths or openings 9 at their lower ends are placed in a convenient position in front of each of the driving wheels 17. At this lower endof each guide tube is provided a flap valve 18 preferably hinged at the forward side as at 19 to each guide tube. The inner surface of the flap valve 18 fits snugly beneath the smooth lower end of each guide tube 16, as best seen in Figure 3.

Spaced from each other within the receptacle 11 are shown a pair of braces 20 which are preferably made in the shape of a cross secured at the outer end by means of rivets 21. to the side walls of the receptacle 11.

These cross braces are provided with a cen- V tral aperture in which a guide rod 22 is carried with sufiicient play to permit easy axial dis lacement of the rod 22. To the lower en of this guide rod 22 is hinged a link against the lower edge of an inclined partition 27 rigidly secured to the rear and sides of the receptacle 11' by means of rivets 28 or the like. The partition 27 and the shutter 25 are situated sufiiciently high above the pyramidic bottom 13 of the receptacle so that the shutter 25 has room to swing back when open to permit the sand to pass over the edge of partition 27 and into the funnel at the bottom of the rece tacle. This is indicated by dottedlines in igure 3.

To the under side of the shutter is hinged another link 29 and an opening 30 is provided in the front wall of the receptacle 11 to permit the free movement of the link when opening and closing the shutter 25. The forward end of this link 29 is journaled as at 31 to a connecting rod 32 carried Y rection of the automobile.

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in suitable bearings 33 and 34 under the bottom of the automobile to permit slidin of the connecting rod 32 in the longitudina di- The forward end of this connecting rod carries a short link 35 connecting it with ahand or foot lever 36 suitably mounted to oscillate at the forward end of the automobile and in a convenient position for the operator. The spring 37, preferably coiled around the connecting rod 32, tends to push the same in rearward direction, in this manner closing the shutter 25 and bringing the operating lever 36 into set position, as indicated in Figure 1.

A pair of chains 38 connect the bottom of the shutter 25 with the flap valves 18 and these chains are deposited within the guide tubes 16, and the length of the same is such, that the shutter 25 and the flap valves close simultaneously.

Upon the guide rod 22 are secured agitators 39' provided with four or more arms each and intended to stir up the contents of the receptacle, whenever the shutter 25 is opened to operation by the lever 36.

In some instances I might provide a lifting springAO seated on the top brace 20 and with its upper end abutting against a fixed collar 41, on the guide rod 22 on which rod the spring is coiled as seen in Figure 1. This will insure the complete closing of the shutter 25 and the flap valves 18 and take care of all lost motion in the joints.

.' correspond to the links 29 in Figure 3, are

hinged to short levers 45 secured on a common rocking shaft 46 supported in suitable resa es"? bearings 47. To this rocking shaft 46 is rigidly secured an arm 48 linked at the rear end of the connecting rod 32, the operating lever 36 in connection with this rod being the same as already described.

The movable parts of the apparatus will normally stand in the position indicated by full lines in the figures of the drawings, that is to say, the foot lever 36 will be drawn to the rear by the spring 37, which at the same time pushes the connecting rod 32 rearwardly thereby. closing the shutter 25. The spring 37 will then be assisted by the spring 40 in the top of the receptacle in case this latter spring is provided, and the chains 38 will also be drawn taut so that the flap valves 18 also close the mouths of the guide tubesv 16. l Vith the part-s in this posltion, the receptacle is filled with dry sand and the cover 12 laid on top thereof. It is evident that. the strength of the springs must .be sufficient to close the shutter 25 against all ressure of the sand above the same.

when it is necessary to sprinkle sand in front of the driving wheels of a vehicle the foot lever 36 is pressed forward against the action of the springs 37 and 40 and through the intermediary of the link connection with the shutter 25, the latter is then opened into the dot-ted position indicated in Figure3, permitting the sand to escape over the edge of the shutter and the edge of the partitions 27 into the funnel 15 and along the guide tubes 16. The feeding of the sand is then assisted by the agitators 39 through the cooperation of the links 23 and guide rod 22,-

- of the guide tubes 16 to be deposited in front of each driving wheel of the vehicle.

When suiiicientsand has been sprinkled in front of the wheels, the lever 36 is'released, when the spring 3.? will draw it back in set position at the same timeclosing the a shutter 25 and the valves 18.

The operationofan apparatus provided withfitwin receptacles, as shown in Figure 5, is identical with the above given description, the two shutters in said receptacle being simultaneously operated through the oscillating rod46. I

It is evident that by placing the valves 18 at the lower ends of the guide tubes 16 and making them fit tightly over the mouths thereof without any projecting edges, the valves can not possibly be clogged or the months 9 of the guide tubes be closed by mud collecting from the splashing of the wheels. This is a great advantage as, in this manner, the apparatus will always be in operative condition.

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v is claime access-'7 comprisin a receptacle, guide tubes leading from the ttom of the receptacle and having mouths opening in front of the respective drivin wheels of the vehicle, a part1- tion space from the bottom of the receptacle and furnishing a delivery openin with the sides of the receptacle, a shutter c osing said opening, means for operating said shutter, and tie valves fitting aga nst the outer of said mouths and positively connected with said shutter. o

2. A sanding apparatus for motor vehicles com risin a receptacle, guide tubes leading om t e bottom of the receptacle and having mouths opening in front cf the respective driving wheels of the vehicle, a partition spaced r ceptacle and furnishing a delivery opening with the sides of the receptacle, a shutter closing said opening, means .for operating said shutter, flap valves fitting agalnst the outer edges of said mouths and positively connected with said shutter, a guide rod slldably mounted in said receptacle, linked connection between said guide rod and said shutter, and agitators secured on said guide 3. A sandihg apparatus for motor vehicles comprisin a receptacle, guide tubes leading from the bottom of the receptacle and having mouths openin in front of the respective driving w eels of the vehicle, a

connected with said shutter, said operating means including a lever, linked connection between said lever and said shutter and a closing element holding said lever in set position and the shutter together with said valves closed.

4. A sanding apparatus for motor vehicles comprising a receptacle, guide tubes leading from the bottom of the receptacle and having mouths opening in front of the respective driving wheels of the vehicle, a partition spaced from the bottom of the rece tacle and furnishing a delivery opening with the sides of the receptacle, a shutter closing said opening, means for operating said shutter, flap valves fitting against the outer edges of said mouths and positively connected with said shutter, a guide rod slidably mounted in said receptacle, linked connection between said guide rod and said shutom the bottom of the reter, agitators secured on said guide rod, said operating means including a lever, linked connection between said lever and said shut- "ter anda closingelement holding said lever in set position and the shutter together with said valves closed.

5. A sanding apparatus for motor vehicles comprisingoa receptacle, guide tubes leading y from the ttom of the receptacle and having mouths openin in front of the respective driving whee of the vehicle, a partition spaced from the bottom of the rece tacle and furnishing a delivery opening with the sides of the receptacle, a shutter closingl said opening, means for operating said s utter, flap valves fitting against the outer edges of. said mouths and positively connects with said shutter, a. guide rod slidably mounted in said receptacle, linked connection between said guide rod and said shutter, agitators secured on said guide rod, said operating means including a lever, linked connection between said lever and said shutter and a spring holding said lever in set position and the shutter together with said valves closed.

6. A sanding apparatus for motor vehicles comprising a receptacle, ide tubes leading from the bottom of t e receptacle and having mouths opening in front of the respective driving wheels of the vehicle, a partition spaced ceptacle and furnishing a delivery opening with the sides of the-receptacle, a shutter closin said opening, means for operating said s utter, flap valves fitting against the outer ed s of said mouths'and positively connects with said shutter, a guide rod slidably mounted in said receptacle, linked connection between said guide rod and said rom the bottom of the re a shutter, agitators secured on said guide rod,

said operating means including a lever, linked connection between said lever and said shutter and a spring holding said lever in set position and the shutter together with said valves closed, said positive connection comprising chains secured to said shutter and said valves and guided in said tubes.

7. A sanding apparatus for motor vehicles comprising a receptacle, a guide tube leading from the bottom of the receptacle and having a mouth openin thedriving wheel of the vehic e, a partition spaced from the bottom of the receptacle and furnishing a delivery openin with the sides of the receptacle, a shutter c osing said opening, means for operating said shutters, and a valve fitting against the outer edges of said mouth opening and positively\eonnected with said shutters. n. 8. A sanding apparatus for motor vehicles comprising a pair of receptacles, guide tubes leading from the bottom of each of said receptacles and having mouths opening in front of the respective driving wheels of in front of the vehicle, a partition spaced from the bottom of each receptacle and furnishing a delivery opening with the sides of the receptacles, a shutter for each of said openings, 5 means for operating said shutters, flap valves fitting against the outer edges of said mouths and positively connected with said e ea? between said guide rod and said shutters, I10

andagitators secured on said guide rods.

In testimony whereof ll afix my signature.

LEONARD J. DUFJFNER. [n.s] 

